#974 mod_smacks causes two TCP segments to be sent
Reporter
Ge0rG
Owner
Nobody
Created
Updated
Stars
★★ (2)
Tags
Type-Defect
Status-New
Component-Community
Priority-Medium
Ge0rG
on
Whenever mod_smacks issues an <r/> over a session, it will do session.send right after the stanza that caused the transmission (every stanza by default) has been sent.
That means, the transmission goes like that:
```
--> stanza(s)
<-- ack
--> <r/> (Nagle's algorithm makes the TCP stack wait for the ack until sending out the next incomplete segment)
<-- ack
<-- <a/>
--> ack
```
It would be great if prosody could piggy-back the <r/> on the stanza(s) segment, to reduce the number of round trips and the battery drain on mobile clients. Thanks.
Zash
on
Changes
tags Component-Community
Zash
on
Tagging issue as affecting a community module, not officially supported by the Prosody team.
Whenever mod_smacks issues an <r/> over a session, it will do session.send right after the stanza that caused the transmission (every stanza by default) has been sent. That means, the transmission goes like that: ``` --> stanza(s) <-- ack --> <r/> (Nagle's algorithm makes the TCP stack wait for the ack until sending out the next incomplete segment) <-- ack <-- <a/> --> ack ``` It would be great if prosody could piggy-back the <r/> on the stanza(s) segment, to reduce the number of round trips and the battery drain on mobile clients. Thanks.
Tagging issue as affecting a community module, not officially supported by the Prosody team.
Changes